Just 1 percent of employees are responsible for 75 percent of cloud-related enterprise security risk, and companies can dramatically reduce their exposure at very little additional cost by paying extra attention to these users.

According to newly-released research by CloudLock, which analyzed the behavior of 10 million users during the second quarter of this year, these users are sending out plain-text passwords, sharing files, accidentally downloading malware, clicking on phishing links, using risky applications, reusing passwords, and engaging in other types of dangerous behaviors.